Allow rm of multiple apps in one command

Adds ability to remove multiple running apps with a single command. E.g.:
	docker app rm app1 app2
Attempts to remove all listed apps before returning any errors same as with docker app image rm.

Signed-off-by: Nick Adcock <[email protected]>

Author: zappy-shu

e2e/commands_test.go

@@ -341,16 +341,8 @@ func TestDockerAppLifecycle(t *testing.T) {
 
 		// Install a Docker Application Package with an existing failed installation is fine
 		cmd.Command = dockerCli.Command("app", "run", appName, "--name", appName)
-		checkContains(t, icmd.RunCmd(cmd).Assert(t, icmd.Success).Combined(),
-			[]string{
-				fmt.Sprintf("WARNING: installing over previously failed installation %q", appName),
-				fmt.Sprintf("Creating network %s_back", appName),
-				fmt.Sprintf("Creating network %s_front", appName),
-				fmt.Sprintf("Creating service %s_db", appName),
-				fmt.Sprintf("Creating service %s_api", appName),
-				fmt.Sprintf("Creating service %s_web", appName),
-			})
-		assertAppLabels(t, &cmd, appName, "db")
+		checkContains(t, icmd.RunCmd(cmd).Assert(t, icmd.Success).Combined(), expectedAppRunOutput(appName, true))
+		assertAppDbLabels(t, &cmd, appName)
 
 		// List the installed application
 		cmd.Command = dockerCli.Command("app", "ls")
@@ -375,21 +367,64 @@ func TestDockerAppLifecycle(t *testing.T) {
 				fmt.Sprintf("Updating service %s_api", appName),
 				fmt.Sprintf("Updating service %s_web", appName),
 			})
-		assertAppLabels(t, &cmd, appName, "db")
+		assertAppDbLabels(t, &cmd, appName)
 
 		// Uninstall the application
 		cmd.Command = dockerCli.Command("app", "rm", appName)
-		checkContains(t, icmd.RunCmd(cmd).Assert(t, icmd.Success).Combined(),
-			[]string{
-				fmt.Sprintf("Removing service %s_api", appName),
-				fmt.Sprintf("Removing service %s_db", appName),
-				fmt.Sprintf("Removing service %s_web", appName),
-				fmt.Sprintf("Removing network %s_front", appName),
-				fmt.Sprintf("Removing network %s_back", appName),
-			})
+		checkContains(t, icmd.RunCmd(cmd).Assert(t, icmd.Success).Combined(), expectedAppRmOutput(appName))
+	})
+}
+
+func TestDockerAppLifecycleMultiRm(t *testing.T) {
+	runWithDindSwarmAndRegistry(t, func(info dindSwarmAndRegistryInfo) {
+		cmd := info.configuredCmd
+		appName := strings.ToLower(strings.Replace(t.Name(), "/", "_", 1))
+		tmpDir := fs.NewDir(t, appName)
+		defer tmpDir.Remove()
+
+		cmd.Command = dockerCli.Command("app", "build", "--tag", appName, "testdata/simple")
+		icmd.RunCmd(cmd).Assert(t, icmd.Success)
+
+		// Install multiple applications
+		cmd.Command = dockerCli.Command("app", "run", appName, "--name", appName)
+		checkContains(t, icmd.RunCmd(cmd).Assert(t, icmd.Success).Combined(), expectedAppRunOutput(appName, false))
+		assertAppDbLabels(t, &cmd, appName)
+		appName2 := appName + "2"
+		cmd.Command = dockerCli.Command("app", "run", appName, "--name", appName2, "--set", "web_port=8083")
+		checkContains(t, icmd.RunCmd(cmd).Assert(t, icmd.Success).Combined(), expectedAppRunOutput(appName2, false))
+		assertAppDbLabels(t, &cmd, appName2)
+
+		// Uninstall multiple applications
+		cmd.Command = dockerCli.Command("app", "rm", appName, appName2)
+		checkContains(t, icmd.RunCmd(cmd).Assert(t, icmd.Success).Combined(), append(expectedAppRmOutput(appName), expectedAppRmOutput(appName2)...))
 	})
 }
 
+func expectedAppRunOutput(appName string, prevFailed bool) []string {
+	expected := []string{}
+	if prevFailed {
+		expected = append(expected, fmt.Sprintf("WARNING: installing over previously failed installation %q", appName))
+	}
+	expected = append(expected,
+		fmt.Sprintf("Creating network %s_back", appName),
+		fmt.Sprintf("Creating network %s_front", appName),
+		fmt.Sprintf("Creating service %s_db", appName),
+		fmt.Sprintf("Creating service %s_api", appName),
+		fmt.Sprintf("Creating service %s_web", appName),
+	)
+	return expected
+}
+
+func expectedAppRmOutput(appName string) []string {
+	return []string{
+		fmt.Sprintf("Removing service %s_api", appName),
+		fmt.Sprintf("Removing service %s_db", appName),
+		fmt.Sprintf("Removing service %s_web", appName),
+		fmt.Sprintf("Removing network %s_front", appName),
+		fmt.Sprintf("Removing network %s_back", appName),
+	}
+}
+
 func TestCredentials(t *testing.T) {
 	credSet := &credentials.CredentialSet{
 		Name: "test-creds",
@@ -499,8 +534,8 @@ func TestCredentials(t *testing.T) {
 	})
 }
 
-func assertAppLabels(t *testing.T, cmd *icmd.Cmd, appName, containerName string) {
-	cmd.Command = dockerCli.Command("inspect", fmt.Sprintf("%s_%s", appName, containerName))
+func assertAppDbLabels(t *testing.T, cmd *icmd.Cmd, appName string) {
+	cmd.Command = dockerCli.Command("inspect", fmt.Sprintf("%s_db", appName))
 	checkContains(t, icmd.RunCmd(*cmd).Assert(t, icmd.Success).Combined(),
 		[]string{
 			fmt.Sprintf(`"%s": "%s"`, internal.LabelAppNamespace, appName),

internal/commands/remove.go

@@ -1,12 +1,15 @@
 package commands
 
 import (
+	"errors"
 	"fmt"
 	"os"
+	"strings"
 
 	"github.com/docker/app/internal/cliopts"
 	"github.com/docker/app/internal/cnab"
 	"github.com/docker/app/internal/packager"
+	"github.com/docker/app/internal/store"
 
 	"github.com/deislabs/cnab-go/driver"
 
@@ -30,9 +33,23 @@ func removeCmd(dockerCli command.Cli, installerContext *cliopts.InstallerContext
 		Short:   "Remove a running App",
 		Aliases: []string{"remove"},
 		Example: `$ docker app rm myrunningapp`,
-		Args:    cli.ExactArgs(1),
+		Args:    cli.RequiresMinArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
-			return runRemove(dockerCli, args[0], opts, installerContext)
+			_, installationStore, credentialStore, err := prepareStores(dockerCli.CurrentContext())
+			if err != nil {
+				return err
+			}
+
+			errs := []string{}
+			for _, arg := range args {
+				if err := runRemove(dockerCli, arg, opts, installerContext, installationStore, credentialStore); err != nil {
+					errs = append(errs, fmt.Sprintf("Error: %s", err))
+				}
+			}
+			if len(errs) > 0 {
+				return errors.New(strings.Join(errs, "\n"))
+			}
+			return nil
 		},
 	}
 	opts.credentialOptions.addFlags(cmd.Flags())
@@ -41,12 +58,12 @@ func removeCmd(dockerCli command.Cli, installerContext *cliopts.InstallerContext
 	return cmd
 }
 
-func runRemove(dockerCli command.Cli, installationName string, opts removeOptions, installerContext *cliopts.InstallerContextOptions) (mainErr error) {
-	_, installationStore, credentialStore, err := prepareStores(dockerCli.CurrentContext())
-	if err != nil {
-		return err
-	}
-
+func runRemove(dockerCli command.Cli,
+	installationName string,
+	opts removeOptions,
+	installerContext *cliopts.InstallerContextOptions,
+	installationStore store.InstallationStore,
+	credentialStore store.CredentialStore) (mainErr error) {
 	installation, err := installationStore.Read(installationName)
 	if err != nil {
 		return err